add_executable(1_Calculate_The_Sum_of_Factorials "1_Calculate_The_Sum_of_Factorials.c")
add_executable(2_Calculate_The_Largest_Three-digit_Divisor "2_Calculate_The_Largest_Three-digit_Divisor.c")
add_executable(3_Kong_Rong_Sharing_The_Pears "3_Kong_Rong_Sharing_The_Pears.c")
add_executable(4_Sum_of_Primes "4_Sum_of_Primes.c")
